+TresOkies Posted June 7, 2002 Share Posted June 7, 2002 I just read this on Risks Digest, quoted from sci.space.news. Might be of interest to some of you... quote:Newsgroups: sci.space.news Subject: ISS On Orbit status 28-05-2002 "The troubleshooting of the GPS (global position system) attitude errors has been successful. At first thought to be due to the high solar Beta angle (where fewer GPS satellites are in sight), the cause has now been traced to the software, which did not calculate attitudes correctly due to a truncated parameter. The error was eliminated, and the system is now working fine, even at high Beta angles, supplying state vector and attitude data. With Russian concurrence, GPS will now also provide the periodic updates of the SM's BINS strapdown navigation and guidance system, instead of requiring lengthy manual data takes by the crew using the optical PUMA system, thus saving valuable crew time." Not to mention the psychological benefits to the crew of one less "area of concern" in a setting where resolving glitches in a critical subsystem can easily become an exercise in "staying alive". -E -- N35°32.981 W98°34.631 Quote Link to comment
+PDOP's Posted June 7, 2002 Share Posted June 7, 2002 So I wonder what their velocity readout is? It would probably be the fastest ever measured by GPS. Quote Link to comment
+PDOP's Posted June 7, 2002 Share Posted June 7, 2002 So I wonder what their velocity readout is? It would probably be the fastest ever measured by GPS. Quote Link to comment
OFF RODE Posted June 7, 2002 Share Posted June 7, 2002 quote:Originally posted by PDOP's: So I wonder what their velocity readout is? It would probably be the fastest ever measured by GPS. As well as altitude! "You've got to be very careful if you don't know where you're going, because you might not get there." Yogi Berra Quote Link to comment
OFF RODE Posted June 7, 2002 Share Posted June 7, 2002 quote:Originally posted by PDOP's: So I wonder what their velocity readout is? It would probably be the fastest ever measured by GPS. As well as altitude! "You've got to be very careful if you don't know where you're going, because you might not get there." Yogi Berra Quote Link to comment
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